diff --git a/config/rubocop.yml b/config/rubocop.yml
index b629f060..600bce4e 100644
--- a/config/rubocop.yml
+++ b/config/rubocop.yml
@@ -33,6 +33,16 @@ CollectionMethods:
 AccessControl:
   Enabled: false
 
+MethodLength:
+  CountComments: false
+  Max: 17 # TODO: Bring down to 10
+
+RegexpLiteral: # I do not agree %r(\A) is more readable than /\A/
+  Enabled: false
+
+Eval:
+  Enabled: false # Mutant must use Kernel#eval to inject mutated source
+
 # Limit line length
 LineLength:
   Max: 124  # TODO: lower to 79
diff --git a/lib/mutant/loader.rb b/lib/mutant/loader.rb
index 002a5047..18b57e3d 100644
--- a/lib/mutant/loader.rb
+++ b/lib/mutant/loader.rb
@@ -40,7 +40,12 @@ module Mutant
       # @api private
       #
       def run
-        eval(source, TOPLEVEL_BINDING, @subject.source_path.to_s, @subject.source_line)
+        eval(
+          source,
+          TOPLEVEL_BINDING,
+          @subject.source_path.to_s,
+          @subject.source_line
+        )
       end
 
       # Return source